This is yet another case of the legal profession trying to gain access to more information that is necessary. A.k.a. we don't know exactly what we are looking for, so let's shotgun approach and look for the damning evidence. Also, it is a case of those who are subpoened not performing due dilligence. We all know that nothing on the net is truly private, however, we pay ISP's for service and expect some measure of protection.